25Cr2Mo1VA chemical composition and heat treatment

Chemical composition
Carbon silicon of C :0.22-0 .29 Si :0.17-0 .37
Manganese Mn: 0.50-0.80
Molybdenum Mo :0.90-1 .10 chromium Cr :2.10-2 .50
Vanadium V :0.30-0 .50
Phosphorus P: 0.035 (residual content)
Sulfur S: 0.035 (residual content)
Copper Cu: 0.30 (residual content)
Nickel Ni: 0.30 (residual content)

Heat treatment specifications
   [Heat treatment quenching temperature (° C): 900;
Coolant: Oil-tempered heating temperature (° C): 640; coolant: empty

Mechanical Properties
   【Mechanical properties of tensile strength (σb / MPa): ≥ 930
Yield point (σs / MPa): ≥ 785 Elongation rate (δ5 /%): ≥ 14
Section shrinkage (ψ /%): ≥ 55
Impact absorbed energy (Aku2 / J): ≥ 63
Brinell hardness (HBS100/3000) (annealing or tempering state): ≤ 241